The objectives of the study were to explore the transformation law of plant species diversity and soil physical and chemical properties and their relationship in the karst rocky desertification ecosystem of Southwest China. The representative karst rocky desertification ecosystem, that is, Houchang at Qianxi County of Guizhou Province, was selected as experiment site. Based on the field investigation and laboratory analysis, the plant diversity, soil physical and chemical properties and their correlativity in the succession of karst rocky desertification were studied by the method of ANOVA, multiple comparisons, correlation analysis, and so on. Results show that the vegetation of karst rocky desertification ecosystem is very simple, the four indexes of plant diversity all are low, and the evenness and diversity indexes are significantly related with the succession of rocky desertification. There are significant differences of soil physical and chemical properties between different degrees of rocky desertification ecosystem, and with the increased degree of rocky desertification, most of soil physical and chemical factors decreased firstly and then increased. Soil physical and chemical properties are obviously related with plant diversity indexes. The change of soil physical and chemical properties can remarkably influence the characteristics of plant diversity in karst rocky desertification ecosystem. The results have important values for the protection of karst forest ecosystem and the control of rocky desertification.

相似文献/References:

[1]纪启芳,张兴奇,张科利,等.贵州省喀斯特地区坡面产流产沙特征[J].水土保持研究,2012,19(04):1. JI Qi-fang,ZHANG Xing-qi,ZHANG Ke-li,et al.Runoff and Sediment Characteristics of Slope Land in Karst Areas of Guizhou Province[J].,2012,19(05):1.[2]陈昊,吴攀,刘沛,等.麻窝山小流域石漠化景观格局变化特征[J].水土保持研究,2012,19(04):239. CHEN Hao,WU Pan,LIU Pei,et al.Landscape Patterns of Rocky Desertification in the Mawoshan Karst Basin of Northwest Guizhou Province[J].,2012,19(05):239.[3]王德光,胡宝清,饶映雪,等.基于网格法与ANN的县域喀斯特土地系统功能分区研究[J].水土保持研究,2012,19(02):131. WANG De-guang,HU Bao-qing,RAO Ying-xue,et al.Research on Functional Zoning of Karst Land System at County Regional Scale Based on the Methods of Lattice and ANN[J].,2012,19(05):131.[4]何钢,蔡运龙,万军.生态重建模式的尺度视角—以我国西南喀斯特地区为例[J].水土保持研究,2003,10(03):83. HE Gang,CAI Yun-long,WAN Jun.Scale Perspective on Ecological Rehabilitation Model—Case Study in Karst Area of Southwest China[J].,2003,10(05):83.[5]吴秀芹,蔡运龙,蒙吉军.喀斯特山区土壤侵蚀与土地利用关系研究——以贵州省关岭县石板桥流域为例[J].水土保持研究,2005,12(04):46. WU Xiu-qin,CAI Yun-long,MENG Ji-jun.Impacts of Land Use on Soil Erosion in Karst Mountainous Area——A Case Study in Shibanqiao Catchment in Guanling county, Guizhou Province[J].,2005,12(05):46.[6]彭建,蔡运龙,王尚彦,等.喀斯特石林发育的土壤学视角[J].水土保持研究,2005,12(04):49. PENG Jian,CAI Yun-long,WANG Shang-yan,et al.Study on the Role of Soil in Stone Forest Development[J].,2005,12(05):49.[7]姜光辉,郭芳,袁道先.岩溶石漠化地区土地资源及其开发潜力——以云南木美地下河为例[J].水土保持研究,2005,12(05):214. JIANG Guang-hui,GUO Fang,YUAN Dao-xian.The Characteristic and Exploitation Potential of Land Resources in Karst Mountain Desertification Areas——A Case Study of Mumei Undergroud River[J].,2005,12(05):214.[8]李宝荣,崔国发,王克勤.玉溪市南盘江流域石灰岩地区景观格局变化研究——以江川县路居片区小流域为例[J].水土保持研究,2006,13(01):227. LI Bao-rong,CUI Guo-fa,WANG Ke-qin.Study on the Landscape Change of a Karst Area in the Drainage Area of Nanpanjiang River in Yuxi——A Small Drainage Area of Luju District in Jiangchuan County as an Example[J].,2006,13(05):227.[9]王金乐,林昌虎,何腾兵.贵州喀斯特山区石漠化生态环境背景与生态重建[J].水土保持研究,2006,13(05):148. WANG Jin-le,LIN Chang-hu,HE Teng-bing.Ecological Environment of Rocky Desertification and Ecological Rehabilitation Model in Karst Mountainous Area of Guizhou[J].,2006,13(05):148.[10]王家嘉,林昌虎,何腾兵.人类活动对贵州喀斯特石漠化地区的影响[J].水土保持研究,2006,13(05):276. WANG Jia-jia,LIN Chang-hu,HE Teng-bing.Recognition of Human Activity in the Prevention and Control of Rocky Desertification Phenomena in Guizhou Karst Mountain Area[J].,2006,13(05):276.[11]李永垚,熊康宁,罗娅.喀斯特石漠化综合治理工程科技贡献率测算研究进展[J].水土保持研究,2012,19(06):259. LI Yong-yao,XIONG Kang-ning,LUO Ya.Progress of Research on Measurement of Science and Technology Contribution Rate Concerning Karst Rocky Desertification Comprehensive Management Project[J].,2012,19(05):259.[12]张茵,刘松.喀斯特石漠化山区生态重建研究——以贵州省罗甸县大关村为例[J].水土保持研究,2001,8(02):80. ZHANG Yin,LIU Song.Study on Ecological Rehabilitation in Karst Regions——The Case of Daguan Village[J].,2001,8(05):80.[13]宋先花,蔡运龙.西南喀斯特石漠化地区生态建设产业化初探[J].水土保持研究,2003,10(03):87. SONG Xian-hua,CAI Yun-long.Industrialization of Ecological Construction in Karst Areas of Southwest China[J].,2003,10(05):87.[14]张冬青,林昌虎,何腾兵.贵州喀斯特环境特征与石漠化的形成[J].水土保持研究,2006,13(01):220. ZHANG Dong-qing,LIN Chang-hu,HE Teng-bing.Environmental Characteristic of Karst in Guizhou and Forming of Rock Desertification[J].,2006,13(05):220.[15]赵洋毅,周运超,段旭.黔中石灰岩喀斯特表层土壤结构性与土壤抗蚀抗冲性[J].水土保持研究,2008,15(02):18. ZHAO Yang-yi,ZHOU Yun-chao,DUAN Xu.Surface Soil Structure and Its Relationship with Soil Anti-erosion and Soil Anti-scour Under the Limestone Region of Karat Area in the Middle of Guizhou[J].,2008,15(05):18.[16]覃家科,殷兴华,吕仕洪,等.喀斯特生态重建果园土壤养分季节变化研究[J].水土保持研究,2010,17(06):101. QIN Jia-ke,YIN Xing-Hua,L&Uuml,et al.A Study of Seasonal Changes in Soil Nutrients of Ecological Restoration Orchards in Karst[J].,2010,17(05):101.[17]赵洋毅,段旭.滇东石漠化地区不同植被模式土壤渗透性研究[J].水土保持研究,2014,21(04):45. ZHAO Yang-yi,DU Xu.Study on Soil Infiltration Capability under Different Vegetation Models in Rocky-Desertification Areas of Karst in Eastern Part of Yunnan Province[J].,2014,21(05):45.[18]陈起伟,熊康宁,周梅,等.关岭县不同等级石漠化区土壤侵蚀特征[J].水土保持研究,2018,25(05):24. CHEN Qiwei,XIONG Kangning,ZHOU Mei,et al.Characteristics of Soil and Water Loss in Different Rocky Desertification Areas in Guanling County[J].,2018,25(05):24.